"Many forms of cancer have been treated using systemic radiotherapeutics, which can destroy cancer cells, their ability to replicate or both.

However, these drugs may also attack other, healthy tissues on their way to the target tumour, which results in severe side-effects for the patient and explains why radiotherapy can have such a profound negative effect on the body during a course of this treatment. Therefore, medical scientists and researchers have been working for some time to develop these therapies so that they attack cancer cells with much more accuracy and specificity."